Need Trailblazer rear shocks

I'm looking for some advice on which rear shocks would work best to replace my wornout rears on a 02 Trailblazer with ZW7 suspension. Has anyone had any success replacing these with something other than the factory OEM shocks? Thanks for your help.

Checkout Shockwarehouse.com. They are very good at telling you what replacement shocks go on your truck, depending on if you have air ride or coil. I know on my yukon xl with ZW7 package I have to replace the coils also if I go with normal shocks because the rears have Nivomat shock from the factory. I just put a set on of bilsteins on my bosses 08 envoy from them. They fit and work perfectly